Improvement in fire-proof mansard roofs



-2 Sheets--Sheet 2.

1. w. KENNEDY. Fira-Pro'fHansard-Roofs.

N0. l42l`793. Patented Septe`mber16,1873.

UNITED STATES PATENT OFFICE..

JOSIAII W. KENNEDY, OF ST. LOUIS; MISSOURI.

BMPROVEMENT IN FlREd-PROOF MANSARD ROOFS.

Specification forming part of Lettrrs Patent No. 142,793, datedSepiunber 16, 1873; application iiled December 4, 1872.

5,' detached views, representing the methody Aof securing the tiles tothe slitting-bars; Fig.

6, an elevation, showing the method ot' coustructing the insidepartitions; and Figs. 7, 8, and 9, detached views, 4representing thedetails of construction of the partitions.

Similar letters of reference in the accompanying drawings denote thesame parts.

The object of my invention is to provide for the publie an improved modeof constructing French roofs, so as to render them lire-proofwithoutaddin g to their cost or detraeting from their lightness andstrength; to which end the invention consists, first, in the improvedmethod of constructing such roofs of common gas-pipes connected bysockets; and, secondly, in the details of construction, as hereinaftermore specifically set forth and claimed.

` In the drawings, AA' represent the rafters, which may be straight orcurved, according to the design selected for the roof; B B', thehoritontal pieces corresponding to the polevplates, purlins, andridge-pieces; C C', up-

rights to support the structure; and D 1),tiebeams to secure the variousparts in their proper position. All the parts are constructed of commoniron gas-pipev or similar'tubing,

Vconnected by screw-sockets a a in the manner usually employed byplumbers and gas-litters,

. as clearly shown in Figs. 1 and 5.V The. frame'- work of the root`being thus constructed, iron slating-bars E E are attached to therafters and secured in position by means of bolts with conntersunkheads, as represented lin Fig. 3. The tiles F are attached to the barsE, pret'- erably, by means of hooks f catchingaronml the upper edgeofthe slitting-bars, i n the manner shown in Figs. 1, 2, 4, 5. Whenmetallic tiles are employed the hooks may, if preferred, be cast orformed as a part of the the itself.

In order to 4render the upper part of the building as nearly as possibleindestructible by fire, I construct the partitions by attaching groovediron supporting-bars G to the sides of the uprights O C, as shown inFigs. 6, 7, 8, 9, and placing tiles Il. upright in the grooves. Spacesare left between the tiles, and the whole is then plastered over. Figs.7 and 8 represent a single partition, and Fig. 9. a double partition,thus constructed. The saine mode of constructing the partitions may beadopted in any part of the buildin".

It will be observed that illy improved mode of constructing this classof roofs'requires no special adaptation of the materials to the purpose,except such as can be made on the spot by any gas-fitter with theordinary tools of his trade, The materials, too, are all in common use,and are, therefore, abundant, convenient, and cheap, so that my new modeof construction involves no additional delay or expense. 1f desired, awater-pipe may be connected to the tubular frame A A', and the lat-A termay be perforated, so as to throw sheets or streams'of water upon theroof 1n case of tire.

I claim as my inventioni 1. The arrangement of theinclined or curvedtubes A A', when provided with slatin g-bars E, in combination wi thhorizontal tubes B B', npright-tubes O O', tie-tubes D, andcouplingpiece a, as and for the purpose set forth.

2. The improved manner of securing the slating to the slating-bar E bymeans ot' the headed hook f, which passes through an orice in the slate,and is curved -so as to catch over and around the slating-bar E,substantially as and for the purpose set forth.

3. The tire-proof partition constructed substantially as shown in Fig.6, and covered with plaster or other suitable covering, substantiall yas described, for the purposes speci- JosrAII W. KENNEDY.

lVitnesses MnLvILLE Ommen, Guo. E. BnowN.

